Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W.
Spodoptera litura Fabricius (Lepidoptera: Noctuidae) is a pest of many agriculture and forestry crops in several parts of the world including Malaysia. One of the natural enemies responsible for regulating field population of S. litura is a nuclear polyhedrosis virus (NPV). In this study, the S....
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| المؤلف الرئيسي: | |
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| التنسيق: | أطروحة |
| اللغة: | English English |
| منشور في: |
1994
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://psasir.upm.edu.my/id/eprint/9910/1/FH_1994_1_A.pdf |
| الوسوم: |
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my-upm-ir.9910 |
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my-upm-ir.99102011-02-25T07:20:01Z Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. 1994 James, Rubinsin Kotulai Spodoptera litura Fabricius (Lepidoptera: Noctuidae) is a pest of many agriculture and forestry crops in several parts of the world including Malaysia. One of the natural enemies responsible for regulating field population of S. litura is a nuclear polyhedrosis virus (NPV). In this study, the S. filura NPV was tested for its actual pathogenicity to S. Litura larvae using eight viral doses ranging from 60 to 6 X 10⁸ PIBs/larva. The result of bioassay shows that LD50 LD90 and LD99 was 5.50 x 10⁴, 5.26 X 10⁸ and 9.26 x 10¹¹ PIBs/larva, respectively. The regression equation, Y = 3.47 + 0.32X , indicates that an increase of larval mortality was due to an increase in viral doses. The LT of the doses was eight, six and five days, respectively, with a regression equation of Y = 13.59 - 9.41X. Spodoptera 1994 Thesis http://psasir.upm.edu.my/id/eprint/9910/ http://psasir.upm.edu.my/id/eprint/9910/1/FH_1994_1_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Spodoptera Faculty of Forestry English |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English English |
| topic |
Spodoptera |
| spellingShingle |
Spodoptera James, Rubinsin Kotulai Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. |
| description |
Spodoptera litura Fabricius (Lepidoptera: Noctuidae) is a pest of many
agriculture and forestry crops in several parts of the world including Malaysia.
One of the natural enemies responsible for regulating field population of S.
litura is a nuclear polyhedrosis virus (NPV).
In this study, the S. filura NPV was tested for its actual pathogenicity to
S. Litura larvae using eight viral doses ranging from 60 to 6 X 10⁸ PIBs/larva.
The result of bioassay shows that LD50 LD90 and LD99 was 5.50 x 10⁴, 5.26
X 10⁸ and 9.26 x 10¹¹ PIBs/larva, respectively. The regression equation, Y =
3.47 + 0.32X , indicates that an increase of larval mortality was due to an
increase in viral doses. The LT of the doses was eight, six and five days,
respectively, with a regression equation of Y = 13.59 - 9.41X. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
James, Rubinsin Kotulai |
| author_facet |
James, Rubinsin Kotulai |
| author_sort |
James, Rubinsin Kotulai |
| title |
Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. |
| title_short |
Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. |
| title_full |
Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. |
| title_fullStr |
Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. |
| title_full_unstemmed |
Pathogenicity of Spodoptera Litura Nuclear Polyhedrosis Virus to S. Litura F. Larvae and its Impact on Sycanus Leucomesus W. |
| title_sort |
pathogenicity of spodoptera litura nuclear polyhedrosis virus to s. litura f. larvae and its impact on sycanus leucomesus w. |
| granting_institution |
Universiti Pertanian Malaysia |
| granting_department |
Faculty of Forestry |
| publishDate |
1994 |
| url |
http://psasir.upm.edu.my/id/eprint/9910/1/FH_1994_1_A.pdf |
| _version_ |
1747811016035532800 |